Rex specimen contains approximately 85% of the original skeleton, and is named Sue after its discoverer, Sue Hendrickson. 47 complete or partial triceratops skulls were found in the Hell Creek Formation between 20. There is one complete Triceratops specimen, and many partial specimens are found each year. Rex was named by Henry Fairfield Osborn, president of the American Museum of Natural History, in 1905. Brown found a second skeleton in Montana in 1902. The first partial skeleton was found by Barnum Brown in Wyoming in 1900. Rex teeth were first found in 1974 by Arthur Lakes in Colorado. The first specimen – a pair of brow horns – was discovered near Denver in 1887. Rex was a predator or purely a scavenger. They probably ate low growing plants, although they may have been able to knock down taller plants to eat. It also had a long, heavy tail to balance out its huge head and torso.Ī comparison of the sizes of various species of Tyrannosaurus with a human Feeding It had a short, muscular neck, a huge head, powerful legs, and two short forelimbs with two clawed fingers each. Estimates of its weight have varied from 4.5 tonnes to 7.2 tonnes. The largest specimen found is 12.3 meters long and 4 meters tall at the hips. Rex is one of the largest land carnivores that ever lived. There has been some dispute over whether it walked with sprawling front legs, to support the weight of its head, or whether it had an upright stance. It had short three-hoofed hands and four-hoofed feet. It had a large skull, one of the largest of all land animals, with a single horn on the snout, and a horn above each eye. Triceratops was around 7.9 to 9 meters long, 3 meters tall, and weighed 6.1 – 12.0 tonnes. They were two of the last species of dinosaurs to exist before mass extinction. Rexes lived in the upper Cretaceous Period, around 67 to 65.5 million years ago. Triceratops lived in the Late Cretaceous period, around 68 to 65.5 million years ago. Osborn.Īn illustration imagining a battle between two Triceratops against a Tyrannosaurus. Isolated teeth were found in 1877, but the species was described in 1905 by H. (Two other debatable species exist, but a recent rebuttal indicates that Tyrannosaurus is monospecific, meaning it contains one species.) It is derived from the Greek turannos (‘tyrant’) and sauros (‘lizard’). The name Tyrannosaurus means "tyrant lizard". More than 30 partial Tyrannosaurus specimens have been found since.Ĥ,000 to 7,000 kg (about 9,000 to 15,000 pounds) United States (Texas, New Mexico, Colorado, Wyoming, South Dakota, North Dakota, and Montana) and Canada (Alberta, Saskatchewan). United States of America (South Dakota, Montana, Wyoming, Colorado) Canada (Saskatchewan and Alberta) Its legs were extremely big and powerful.
The T-Rex's powerful tail allowed it to move quickly could "run" up to 19 mph. Preyed on armored herbivorous dinosaurs, other T. Late Cretaceous Period (67 million years ago)Ĭarnivorous.
Late Cretaceous Period (65 million years ago) rex specimen.Differences - Similarities - Triceratops versus Tyrannosaurus comparison chart rex ever discovered - one leg bone weighed in at 90 kilograms! Researchers believe Scotty was over 28-years-old when it died, older than any other T. Research suggests that Scotty could be the heaviest T. Since finding Scotty, the museum has learned a lot from the bones. rex ever found! Standing a whopping six metres tall and 12 metres long, the local dino was named Scotty after the lead scientist purchased an expensive bottle of scotch whiskey to celebrate the find.
#Trex size full
The museum’s paleontologists recovered 65-70% of the full skeleton - now confirmed as the world's biggest T. It caused a lot of excitement in the small town of Eastend - over 6,000 people visited the site during the first year of work! Three years later, Tim Tokaryk from the Royal Saskatchewan Museum began the five-year excavation. rex skeleton ever discovered in Saskatchewan. In August 1991, Robert Gebhard, a school teacher from Eastend, Saskatchewan joined a team of paleontologists on a local expedition and stumbled across one of the biggest fossil finds in Canadian history.
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